C3946
C3946 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.C3946 Diagnosis
The PTO 1 output circuit is commanded OFF, but air pressure is detected at the pressure feedback switch. Troubleshoot for PTO 2 air solenoid fault, and for air pressure switch short circuit fault.The ICU reads the wiper switch position and sends the status of the switch to the BHM. This fault becomes active when the ICU reads that both LO speed and HI speed are active at the same time.
The BHM measures the current on this circuit when the headlamp output is commanded ON. This fault indicates that the left high beam headlamp circuit is drawing more current than it is designed to supply and possibly there is a wiring fault shorting this circuit to ground.
Ford C3946 Fault Code Meaning :
Ford C3946 Symptoms :
Ford C3946 Reasons :
How To Fix Ford C3946 Trouble Code ?
Which Ford cars have the code C3946?
- C3946 Ford Aerostar
- C3946 Ford Bronco
- C3946 Ford C-Max
- C3946 Ford C-Max Energi
- C3946 Ford C-Max Hybrid
- C3946 Ford Contour
- C3946 Ford Crown Victoria
- C3946 Ford EcoSport
- C3946 Ford Econoline
- C3946 Ford Edge
- C3946 Ford Escape
- C3946 Ford Escape Hybrid
- C3946 Ford Escort
- C3946 Ford Everest
- C3946 Ford Excursion
- C3946 Ford Expedition
- C3946 Ford Explorer
- C3946 Ford Explorer Sport Trac
- C3946 Ford F-150
- C3946 Ford F-250
- C3946 Ford F-350
- C3946 Ford Fiesta
- C3946 Ford Flex
- C3946 Ford Focus
- C3946 Ford Focus Electric
- C3946 Ford Freestar
- C3946 Ford Freestyle
- C3946 Ford Fusion
- C3946 Ford Fusion Energi
- C3946 Ford Fusion Hybrid
- C3946 Ford Fusion Plug-In Hybrid
- C3946 Ford GT
- C3946 Ford Mustang
- C3946 Ford Mustang Mach-E
- C3946 Ford Mystique
- C3946 Ford Probe
- C3946 Ford Ranger
- C3946 Ford Taurus
- C3946 Ford Taurus X
- C3946 Ford Tempo
- C3946 Ford Thunderbird
- C3946 Ford Transit
- C3946 Ford Transit Connect
- C3946 Ford Windstar
A code is a fault code and it indicates that something has gone wrong with your car's engine.
It can be caused by many different problems, including a faulty battery, a bad fuel pump, or even a cracked exhaust manifold.
You will need to diagnose the problem before you can fix it. The best way to do this is with an OBD scanner tool.
A scan tool will tell you what needs fixing and how much it will cost in order to fix that particular issue.